UGC NET ELECTRONIC SCIENCE PREPARATION

Ans C

now int, char and double are basically datatypes in C language.lets understand what each of them mean

A] Int is used to define integers.

int i;

i = 5;

here i is defined as integer (basically it is a memory location allocated to store integer value) and assigned a value 5.

B] char is used to define character.

char let ;

let = 'x';

C] double use to define floating point numbers (e.g = 5.46 , 6.81)

double j ;

j = 4.5;

Now consider above question we have,

int i = 3;

int j = 7;

double f = 5.5 ;

double g = 4.5;

char ch = 'T' ;

Consider option A

(i < = 5 ) && ( ch == 'T')

for above eq. to give true value both expression should be true lets check them.

as i =3 it is less than 5 so first expression is indeed true.

now ch = 'T' is also given in question so it is also true as both expressions are true above equation will give vale TRUE.

(i < 8 ) || ( ch = ' L')

for above eq. to give true value one expression should be atleast true lets check them.

as i =3 it is less than 8 so first expression is indeed true.

so above equation gives TRUE value.

(f > 6) || (i*j < 15)

as f = 5.5 first expression is false

i* j = 16.5 which is greater than 15 so this expression is also false.

so the value of equation is FALSE

So option C is correct option.